NDLI: Observations of condensation nuclei in the 1987 airborne antarctic ozone experiment

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Observations of condensation nuclei in the 1987 airborne antarctic ozone experiment

Content Provider	NASA Technical Reports Server (NTRS)
Author	Smith, S. D. Ferry, G. V. Loewenstein, M. Wilson, J. C.
Copyright Year	1988
Description	The condensation nucleus counter (CNC) flown of the NASA ER-2 in the Airborne Antarctic Ozone Experiment provides a measurement of the number mixing ratio of particles which can be grown by exposure to supersaturated n-butyl alcohol vapor to diameters of a few microns. Such particles are referred to as condensation nuclei (CN). The ER-2 CNC was calibrated with aerosols of known size and concentration and was found to provide an accurate measure of the number concentration of particles larger than about 0.02 micron. Since the number distribution of stratospheric aerosols is usually dominated by particles less than a few tenths of micron in diameter, the upper cutoff of the ER-2 CNC has not been determined experimentally. However, theory suggests that the sampling and counting efficiency should remain near one for particles as large as 1 micron in diameter. Thus, the CN mixing ratio is usually a good measure of the mixing ratio of submicron particles.
File Size	207864
Page Count	5
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890005170
Archival Resource Key	ark:/13960/t1sf7nz4p
Language	English
Publisher Date	1988-05-01
Access Restriction	Open
Subject Keyword	Environment Pollution Grain Size Clouds Ozone Depletion Condensing Stratosphere Cyanides Antarctic Regions Polar Meteorology Airborne Equipment Particle Size Distribution Ice Nuclei Atmospheric Composition Aerosols Nitrogen Oxides U-2 Aircraft Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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